// const formatTime = date => {
//   const year = date.getFullYear()
//   const month = date.getMonth() + 1
//   const day = date.getDate()
//   const hour = date.getHours()
//   const minute = date.getMinutes()
//   const second = date.getSeconds()
//   return [year, month, day].map(formatNumber).join('/') + ' ' + [hour, minute, second].map(formatNumber).join(':')
// }
const formatNumber = n => {
  n = n.toString()
  return n[1] ? n : '0' + n
}
/**
 * 时间戳转化为年 月 日 时 分 秒
 * number: 传入时间戳
 * format：返回格式，支持自定义，但参数必须与formateArr里保持一致
*/
function formatTime(number, format) {
  var formateArr = ['Y', 'M', 'D', 'h', 'm', 's'];
  var returnArr = [];
  var date = new Date(number * 1000);
  returnArr.push(date.getFullYear());
  returnArr.push(formatNumber(date.getMonth() + 1));
  returnArr.push(formatNumber(date.getDate()));

  returnArr.push(formatNumber(date.getHours()));
  returnArr.push(formatNumber(date.getMinutes()));
  returnArr.push(formatNumber(date.getSeconds()));

  for (var i in returnArr) {
    format = format.replace(formateArr[i], returnArr[i]);
  }
  return format;
}

function getRandomInt(min, max) {
  return Math.floor(Math.random() * (max - min + 1) + min)
}
function shuffle(arr) {
  let _arr = arr.slice()
  for (let i = 0; i < _arr.length; i++) {
    let j = getRandomInt(0, i)
    let temp = _arr[i]
    _arr[i] = _arr[j]
    _arr[j] = temp
  }
  return _arr
}

module.exports = {
  formatTime: formatTime,
  shuffle: shuffle
}
